I believe they can collect up to the length of the judgment which is twenty years.

That will go on as long as you file taxes and continue to owe a balance; expect that to stop once the debt is paid.

I live in BC and had a foreclosure in 2001 with my ex. I have not acknowledged the debt in any way since.

The bank took about a $23,000 loss when selling

Since 2002 CRA has taken all my income tax refunds for a MIF defiency judgement

How long will this go on ? When will I ever get a tax return again?